Abstract:

Microporous-mesoporous composite material (MMM）was prepared from TEOS, with CTAB and TPABr used as templates, through simultaneous crystallization.The as-made MMM was characterized by N₂ adsorption/desorption, XRD and FT-IR.The results showed that the MMM has composite pore structure combining both micropores and mesopores, and the pore sizes are mainly located at 0.54 nm, 1.4 nm, 2.8 nm and 3.7 nm.The specific surface area of the MMM was 361.3 m²·g^-1 with a pore volume of 0.347 cm³·g^-1.In addition, the property of the MMM to remove harmful components in cigarette mainstream smoke has been investigated.Comparing with the reference cigarette (without MMM in filter), the deliveries of harmful components in mainstream smoke of experimental cigarette (with MMM in filter, 5 mg·cig^-1）were reduced in varying degrees, in which the deliveries of NNK, B［a］P and phenol were reduced 24.34%, 26.25% and 43.40%, respectively, showing that the MMM was a promising filter additive.

Key words: 模板法, 复合孔结构, 卷烟主流烟气, 有害成分

摘要：

以TEOS为硅源，CTAB、TPABr为模板，通过模板法，同步晶化制备了微孔-介孔复合材料（MMM）。通过N₂吸附脱附、XRD、FT-IR等对MMM进行了表征，并对MMM降低卷烟主流烟气中有害成分的性能进行了考察。研究结果表明，MMM具有微孔-介孔复合孔结构，孔径呈连续多峰分布，主要集中在0.54模板法, 复合孔结构, 卷烟主流烟气, 有害成分